baber/WOPTO huggingface dataset:
Patent GB-1383618-A (GB)
Title: Trimming of ground effect machines
IPC: B60V3/04
Filed: 1973-01-25
Abstract: 1383618 Air cushion vehicle BERTIN & CIE 25 Jan 1973 [25 Jan 1972] 3918/73 Heading B7K An air cushion vehicle has a combined cushion and pneumatic suspension connected by a device which enables variations in pressure in the cushion and suspension to be detected and automatically corrected. The vehicle body M carries a flexible wall 5 attached over an area S2 and closed at its periphery by a plate 3 from which extends a looped skirt 4 enclosing a cushion 1 acting over an area S1 on a supporting surface A. A selected ratio of the cushion pressure P 1  and suspension chamber pressure P2 is determined and maintained by a device 9 comprising a housing enclosing a stepped piston 10 connected at its lower end to a lever 14 which operates a valve 15 to vary the size of an orifice 16. Ambient air pressure is admitted through a duct 13 to the closed space between the piston steps to act as a pressure datum and orifices 11 and 12 in the housing connect the larger and smaller piston faces to cushion pressure and suspension chamber pressure respectively. The valve 15 provides direct and variable communication between the cushion and suspension chambers. The size of orifices 11 and 12 are chosen so that long-term pressure differences are detected by the piston 10 and transmitted to valve 15 to cause the pressures to be restored to their optimum ratio. In another embodiment (Fig. 2, not shown) the pressure difference detecting and regulating devices are enclosed within a single housing having flexible diaphragms of different diameters instead of piston 10. In another embodiment (Fig. 4, not shown) the cushion and suspension chambers are connected by an aperture controlled by a slide-valve actuated by a piston and cylinder arrangement in which a spring-loaded piston is subjected on opposite faces to ambient air pressure and suspension chamber pressure. In a still further embodiment air for the cushion chamber is supplied from the suspension chamber by peripheral nozzles which are throttled by movement of piston 10. An arrangement is described for a track operated vehicle having lower-thanambient cushion pressure.
Patent GB-556309-A (GB)
Title: Improvements in or relating to machines for setting eyelets or the like
IPC: A43D100/02
Filed: 1942-03-25
Abstract: 556,309. Setting eyelets &c BRITISH UNITED SHOE MACHINERY CO., Ltd. (United Shoe Machinery Corporation). March 25, 1942, No. 3941. [Class 43] In a machine for setting eyelets or tubular rivets, movement of one of the setting dies and of the raceway is derived from a common member having both a reciprocating movement for actuating the die and an angular movement for actuating the race-way. A driven shaft 25 has a crank 26 actuating a pitman 27 pivoted at 28 to the slide actuating the upper die and at 30 to a link 50 actuating the race-way. The machine is driven by a belt 53, a conical annular surface 55 of a disk splined to the shaft 25 being urged toward the belt by springs 61. A treadleoperated plunger 65 co-operates with a cam 63 to remove the disk from the belt and, at the end of one revolution, to engage a stop 66 to prevent the shaft turning beyond starting position. Specification 512,868 is referred to.
Patent GB-1216471-A (GB)
Title: Improvements in and relating to titanium dioxide pigments
Inventor: DURRANT GEORGE GEOFFREY
IPC: C09C1/36
Filed: 1967-01-26
Abstract: 1,216,471. Treatment of TiO 2 . LAPORTE TITANIUM Ltd. 24 Jan., 1968 [26 Jan., 1967], No. 3958/67. Heading ClN. TiO 2  pigment containing Al 2 O 3  is formed into an aqueous slurry containing at least 30% by wt. H 2 0 and having a pH not above 5, and after aging a phosphorus compound is added as dispersing agent, preferably after at least 24 hrs., e.g. up to 240 hrs. The TiO 2  may contain 0À25-5% Al 2 O 3 , at least part of which should be acid soluble, i.e. dissolve if boiled with 6N HCl. The TiO 2  may be formed by vapour phase oxidation of TiCi 4 , the A1 2 0 3  being formed simultaneously by oxidation of AlCl 3  or Al; or by hydrolysis of aqueous Ti sulphate, an Al compound being added prior to calcination. The pH of the slurry may be reduced by adding HC1, TiCI 4 , AlCl 3 , or TICi 4  + AlCl 3 . The P compound may be Na hexameta- or pyrophosphate, tri, di, or mono Na phosphate, phosphate esters, or a salt of an acylation product of phosphorous acid, and may be added in amount of 0À05-1À5% by weight of pigment. An alkali, e.g. NaOH, may also be added to bring the pH of the dispersion to 9-12. The dispersion may then be classified, surface treated by coating with hydrous oxides of Si, Ti, Zr, Ce, or Al (e.g. by adding solutions of TiCi 4  and Na aluminate) or with metal phosphates or by contacting with organic materials, flocculated, filtered, washed, dried, and fluid energy milled.
Patent GB-895974-A (GB)
Title: Improved digger for potatoes and other root crops
Filed: 1959-02-04
Abstract: 895,974. Root crop harvesters. THOMLINSON, W. L. Jan. 26, 1960 [Feb. 4, 1959], No. 4011/59. Class 6(3). A root crop harvester comprises a rotatable cage formed by two sets of helical fins 3, 4 fixed to a central drum I and supporting hoops 5. The drum is rotated from a tracker power shaft through gears 14, 15. A lifting share 10 is provided and freely rotatable discs 11 are mounted on each side of the share 10. Root crops freed from soil are delivered at the rear end of the cage and may either be deposited on the ground or discharged on to an elevator attached to the rear of the frame 7, the frame 7 being supported by caster wheels.
Patent GB-1483673-A (GB)
Title: Photographic silver halide light-sensitive material
IPC: G03C1/76
Filed: 1975-01-30
Abstract: 1483673 Photographic silver halide material containing lubricant FUJI PHOTO FILM CO Ltd 30 Jan 1975 [1 Feb 1974] 4179/75 Heading G2C Photographic silver halide material contains in at least one layer, preferably an outermost layer, a liquid organopolysiloxane lubricant containing at least one siloxane unit of the general Formula:- where R' is a group having at least 5 carbon atoms which is an alkyl, cycloalkyl, alkoxyalkyl, aralkyl, aryloxyalkyl or 2:3-epoxypropyloxyalkyl group; which polysiloxane may be a cyclic organopolysiloxane or a linear organopolysiloxane having terminal groups of the Formula  where R<SP>2</SP> is alkyl 1-4C or has one of the values specified for R<SP>1</SP>, or contains siloxane units of one of the Formulae:- where I is 0 or an integer, m is an integer, l + m being 1-1000 and n is 1 or more. The polysiloxane is present in the form of dispersed droplets in a light-sensitive emulsion layer or in a protective or backing lubricating layer which may also contain silica, strontium barium sulphate or silver halide particles.
Patent GB-473864-A (GB)
Title: Improvements in hydraulic shock absorbers
IPC: F16F9/22
Filed: 1937-02-12
Abstract: 473,864. Hydraulic shock - absorbers. GENERAL MOTORS CORPORATION. Feb. 12, 1937, No. 4202. Convention date, Feb. 17, 1936. [Class 108 (iii)] A hydraulic shock-absorber comprises a fluid reservoir 25 in communication with a fluid-displacement chamber 36 through a duct, a valve 60 normally closing the duct but adapted to be actuated by fluid pressure to open the duct, and an inertia mass 82 which in response to heavy shocks increases the restriction of the valve to fluid flow, the valve normally being independent of the inertia mass and engaged thereby only upon movement of the mass in response to heavy shocks. Fig. 2 shows a vehicle shock - absorber of the single piston type in which when the vehicle springs are compressed by a moderate shock, the pistonoperating cam 33 moves clockwise and the piston 35 is maintained in engagement therewith by a spring 37, the fluid pressure opening an intake valve 40 in the piston to permit substantially unrestricted flow from the reservoir 25 into the displacement chamber 36. On rebound of the vehicle springs the piston 35 moves into the cylinder 26, the valve 40 closes and fluid is forced through a passage 71, Fig. 3, into an annular chamber 70 formed by one portion of the three-diameter valve 60 which is slidable in a central passage 54; 55, 56 in a valve-cage 51 screwed in the shockabsorber casing. Due to the differential pressure resulting from the difference in diameter of shoulders 64, 65 on the valve 60, the valve is moved to the left against the action of a spring 67 and permits a restricted flow of fluid from the chamber 36 into the reservoir, thus resisting the rebound movement. In the case of greater rebound, an additional flow of fluid from the chamber 36 is permitted by the head 46 of a pressure-release valve 45 slidable in the intake valve 40, being moved, by the pressure of the fluid, from engagement with the valve 40, against the action of a spring 47. In the case of excessive shocks the valve 60 is moved to the right to increase its restriction to flow of fluid by means of the inertia mass 82 which is secured to a bracket 81 pivotally mounted on a fixed pin 80 and having a finger 90 lying opposite the end of the valve 60, downward swinging movement of the mass about the pin 80, against the action of a spring 83 surrounding a dashpot 84, 85, causing the finger 90 to move the valve 60 to decrease the opening between the end of the valvecage 51 and the valve-shoulder 64. The cylinder 84 of the dashpot rests on the shockabsorber casing and the piston-portion 85 forms a base for supporting the tapered end of a manually-adjustable screw 86 threaded in the mass 82.
Patent GB-487045-A (GB)
Title: Improvements in electrolytic condensers
IPC: H01G9/04
Filed: 1938-02-10
Abstract: 487,045. Electrolytic condensers. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Feb. 10, 1938, No. 4238. Convention date, Feb. 13, 1937. Drawings to Specification. [Class 37] The electrodes of an electrolytic condenser are perforated, wound with an intervening absorbent separator and mounted in a container with space filled with reserve of liquid electrolyte.
Patent GB-972897-A (GB)
Title: A process for the production of insoluble anion-exchange nitrogenous resins
IPC: C08J9/28
Filed: 1963-02-01
Abstract: Anion-exchange resins are produced by reacting (a) a cross-linked co-polymer of an ethylenically unsaturated monomer containing nitrile groups and a polyethylenically unsaturated cross-linking agent with (b) a polyamine which contains at least one primary amino group. The cross-linked copolymers are produced by copolymerizing ethylenically unsaturated monomers containing nitrile groups with a cross-linking agent containing a plurality of non-conjugated olefinically unsaturated groups.  Suitable nitrile containing monomers are acrylonitrile; alkyl substituted and halogenated acrylonitriles; vinylidene cyanide; fumaric, maleic and crotonic acid nitriles; b -cyanoacrylates; a -cyanosorbic acid esters; p-cyanostyrene; allyl and methallyl cyanides.  Suitable cross-linking agents are polyvinyl-aromatic monomers such as divinylbenzene, -toluenes, -xylenes, -ketone, and -naphthalenes; trivinyl benzene; N,N1-methylenediacrylic acid amide and triacryloyl-sym.-perhydrotriazine. Other copolymerizable monomers that may also be incorporated are aromatic vinyl compounds; vinyl acetate or chloride; vinylidene chloride; a , b -olefinically unsaturated carboxylic acids, esters e.g. methyl acrylate and amides; and butadiene and isoprene.  The polymerization is effected by known methods using the usual catalysts such as peroxides and azo compounds and optionally with the addition of known activators.  The cross-linked polymer is then reacted with a polyamine such as ethylene, propylene and tetramethylene diamines, polyalkylene-polyamines and alkylated or hydroalkylated derivatives of these amines.  The products may be quaternated.
Patent GB-1420537-A (GB)
Title: Copolymer salts suitable for use in anionic sizes
IPC: C08F220/06
Filed: 1974-01-30
Abstract: 1420537 Copolymer salts BAYER AG 30 Jan 1974 [31 Jan 1973] 04322/74 Heading C3P Alkali metal, ammonium or amine salts, suitable for use in anionic sizes for paper, are formed by neutralizing copolymers comprising the following units: (a) 0À5-50 wt. per cent of a half-ester of an α,#-unsaturated C 4 -C 5  dicarboxylic acid, up to 30 wt. per cent of these units optionally being replaced by corresponding diester, amide, imide or ammonium salt units or mixtures, thereof; (b) 6-40 wt. per cent of acrylic and/or methacrylic acid; and (c) 40-85 wt. per cent of a vinyl aromatic monomer; these percentages totalling 100. The (a) units may be provided by using a half-ester as monomer, or by subsequent halfesterification of dicarboxylic acid anhydride units. In examples, the ethyl or isopropyl half-ester of maleic acid is copolymerized with styrene and acrylic acid in solution in the presence of peroxidic or azo-nitrile catalysts, and the products neutralized with ammonia.
Patent GB-515137-A (GB)
Title: Improvements in coating compositions and method of preparing same
IPC: D21J1/08
Filed: 1938-02-11
Abstract: 515,137. Synthetic resin compositions. PLASKON CO., Inc. Feb. 11, 1938, No. 4337. Void. Convention date, Feb. 17, 1937. [Class 2(iii)] A coating composition, particularly for fibre board and laminated products, comprises particles of fibrous material, e.g. cellulose, impregnated with a thermosetting synthetic resin and suspended in a vehicle in which little or none of the resin dissolves. Specified resins are urea-formaldehyde and phenol-formaldehyde resins. Cellulose may be in the form of paper, paper pulp or wood flour. The-composition may be.applied by spraying, brushing or spreading and, in particular,' is applied by spraying to and united by hot-pressing with a body'comprised of fibrous material impregnated with natural or artificial resin or of superposed resin - impregnated sheets. Specified liquid vehicles are water, volatile hydrocarbons, benzine and methyl and ethyl ethers. In an example, urea is dissolved in formalin and reaction allowed to proceed at a temperature below 60‹C. to produce a thin syrup into which paper or pulp is stirred ; the wet mass is then dried at a temperature not exceeding 100‹C. until the water content is below 10 per cent., ground to a fine powder and then dispersed in the liquid vehicle by stirring or grinding. Other materials, e.g. lubricants, accelerators, retarders, &c. may be incorporated during the dry grinding ; pigments 'may be incorporated during dry or wet grinding. Particles of bright metal may be scattered through the ground mass.
Patent GB-1246231-A (GB)
Title: Method of pasteurizing yeast
IPC: C12N1/04
Filed: 1970-01-29
Abstract: 1,246,231. Pasteurizing yeast. STANDARD BRANDS Inc. 29 Jan., 1970 [5 Feb., 1969], No. 4343/70. Heading A2D.  Bacteria-containing yeast is pasteurized by introducing into an aqueous suspension of yeast cells, an acidic material in an amount and under conditions to reduce the bacteria count of the yeast without detrimentally affecting in initial leavening activity of the yeast in sweet dough. By sweet dough is meant a dough containing 15-25% by weight of sucrose in the flour. Preferably a sufficient amount of an inorganic acid is added to the suspension to achieve therein a pH of 1 to 1.6, and maintaining the suspension at a temperature from freezing point of the suspension to 90‹F. for 5-180 minutes. After this treatment, the suspension may be neutralised for instance with sodium carbonate to a pH of from 2.5 to 6. Suitable acidic materials are hydrochloric, nitric, lactic, phosphoric and citric acids.
Patent GB-1028215-A (GB)
Title: Improvements relating to vibrator motors for electric dry shavers and other electro-mechanical devices
Inventor: TOWNSHEND RICHARD CHAMBREY
IPC: H02K33/04
Filed: 1963-02-02
Abstract: 1,028,215. Reciprocating electric motors. MORPHY RICHARDS (CRAY) Ltd. Jan. 27, 1964 [Feb. 2, 1963], No. 4350/63. Heading H2A. A vibratory motor, e.g. for a dry-shaver, is dynamically balanced by causing the armature and electromagnet to rock in anti-phase by means of a mechanical linkage which produces motion of each in inverse relation to its inertia. The electromagnet 1, 2 together with a mounting frame 5, are pivoted at 8, while the armature pivots on a pin 6 projecting from the frame. A spring-loaded bridge 10 has knife-edge bearings engaging the casing at 11 and a projection from the armature bearing 12, to produce the rocking motion of the electromagnet. In a modification (Fig. 2, not shown), the electromagnet rocks on ball or roller-bearings running in tracks concentric with its pivotal axis, instead of the pivot, and the armature is linked to the casing by a metal tape.
Patent GB-964923-A (GB)
Title: Improvements in a temperature-regulated transducer
IPC: G01F1/84
Filed: 1961-02-05
Abstract: 964,923. Measuring displacement electrically. W.ROTH. Feb. 5, 1962 [Feb. 20,1961], No. 4364/62. Heading G1N. [Also in Division G3] - An electro-mechanical transducer has a moving-coil 14 arranged in an annular gap between a polepiece 13 and a cylindrical outer section 11 joined through a section 11<1> to a central pole 12 of permanent magnet material. The coil 14 is attached to a mounting pad 16 affixed to a pipe 17, the movement of which is to be reused. The magnet structure is mounted at the forward end of a housing comprising thermal shield cam 21, 22 spaced by heat insulating disc 24 and a heat-insulating annular member 23 extending over the section 11. A tubular member 33 of good heat conductivity, shaped as shown, encircles the magnet structure and carries a thermostat 35 mounted on a diaphragm 34. The thermostat controls the energization of a spiral heater coil 27, mounted on a ceramic base 28, so as to tend to maintain the temperature within the transducer housing constant. It is stated that the permanent magnet structure can be replaced by an electromagnet.
Patent GB-502930-A (GB)
Title: Improvements in or relating to refrigerating apparatus
IPC: F25B15/10
Filed: 1938-02-11
Abstract: 502,930. Refrigerating. ELECTROLUX, Ltd. Feb. 11, 1938, No. 4370. Convention date, March 16, 1937. [Class 29] Absorption systems.-In a continuous-cycle inert gas system having a generator 10 heated continuously by a source of heat such as an oil burner difficult to control, the refrigerating effect is modified by utilizing a closed cycle heat transfer system 60 . . . 66 to heat a liquefied refrigerant conduit 31 so as to divert some or all of this liquid away from the evaporator 18, 19. The heat transfer system receives heat from the generator at 60 and gives up heat to a seal part of the tube 31 in which liquefied refrigerant accumulates from the condenser 15, 16. This refrigerant is lifted by vapour bubbles into a conduit 53 leading to the absorber 12. A valve 66 in the heat transfer system may be controlled by hand or thermostatically, and this control may be used to stop evaporation for defrosting as well as to modify a cabinet temperature. The flow of the refrigerant to the absorber may be just sufficient to enrich the inert gas stream to stop the gas circulation. The evaporator is provided with baffles 20 to form pools, and includes also a reservoir 40. In a modification, Fig. 2, the heat transfer system supplies heat to a condensed refrigerant conduit 70 to raise the liquefied refrigerant through an inverted U- tube 71 leading to the absorber. The condenser fins have a stay member 73.
Patent GB-879279-A (GB)
Title: Improvements in or relating to seat track mechanism
IPC: B60N2/08
Filed: 1960-02-09
Abstract: 879,279. Seats. DALL, E. D. Feb. 9, 1960 [Feb. 9, 1959], No. 4540/60. Class 52(2). An adjustable vehicle seat 10 is mounted for longitudinal movement by means of a support 12 fixed to the floor 11 and having an arched tubular portion 15 on which is slidably mounted a carriage 13 fixed to the underside of the seat 10, spring bearing assemblies 14, each comprising a retainer 21 and a plurality of helical springs 22, being provided at longitudinally spaced points to roll between the surfaces 19, 20 respectively of carriage 13 and track 15. Stops 25, 26 limit the longitudinal movement of assemblies 14. The seat is locked in adjusted position by latches 33 pivoted to carriage 13 and engageable in longitudinally spaced notches 31 in the central portion of the double-walled flange portion 16 of support 12. In a modification which provides for greater longitudinal movement of the seat an intermediate tube 42 is provided between a carriage 40 and support part 41 to form a telescopic arrangement (Fig. 8). Portion 15 may be oval or of other non-circular configuration.
Patent GB-626992-A (GB)
Title: Improvements in and relating to metal coated non-metallic bodies
IPC: C04B37/02
Filed: 1947-02-17
Abstract: Non-metallic bodies, e.g. diamonds, carbon, porcelain, ceramics, are coated with a titanium-copper alloy principally with a view to facilitating the soldering or brazing of said bodies to metals, by applying a mixture of titanium hydride and powdered copper to the surface and heating in a pure dry hydrogen atmosphere until the hydride dissociates and a titanium - copper alloy forms as a coating. A preferred mixture is 26 parts by weight of hydride to 75 of powdered copper, suspended in alcohol &c. which mixture produces an alloy of 25 per cent Ti and 75 per cent Cu upon dissociation of the hydride.  Before brazing or soldering to a metal it may be desirable to superimpose upon the Ti-Cu coating a furthe layer of silver, copper or silver solder. Diamonds coated by the process and then set in a metal or carbide matrix for use as cutting tools are specially referred to. Specification 513,270 is referred to.
Patent GB-890189-A (GB)
Title: Improvements in and relating to the production of metallurgical reducing gas from gaseous hydrocarbons or a gas containing gaseous hydrocarbons
IPC: C21B13/00
Filed: 1960-02-09
Abstract: 890,189. Gas containing carbon monoxide and hydrogen. HUETTENWERK OBERHAUSEN A.G. Feb. 9, 1960 [Feb. 24, 1959], No. 4615/60. Classes 55 (1) and 55 (2). In a two-stage process for producing a gas containing carbon monoxide and hydrogen suitable for use as a metallurgical reducing gas from a gaseous hydrocarbon or a gas containing hydrocarbons the starting material is in the first stage partially combusted in a cyclone-type combustion zone with oxygen or a gas containing free oxygen to produce a gas containing carbon dioxide, steam and a residual hydrocarbon content which gas is further reacted with the supply of heat in the second stage to give the desired gas. In the second stage the gas from the first stage may be passed through a bed of incandescent coke or, as shown, be passed from the combustion zone 1 into one of a pair of chambers 2 containing heated refractory material 8. The chambers 2 are used alternately, the one not in use being reheated to an operational temperature, e.g. 1300‹ C.